diff --git a/as1/as1.cpp b/as1/as1.cpp
index a193df2..7ec973d 100644
--- a/as1/as1.cpp
+++ b/as1/as1.cpp
@@ -1,25 +1,18 @@
 #include "AudioDevice.hpp"
 #include "Color.hpp"
 #include <raylib-cpp.hpp>
+#include <functional>
 #include <iostream>
 
+static std::function<void()> pingButtonHandler;
+
 void PingButton() {
-    std::cout << "Ping!" << std::endl;
+    pingButtonHandler();
 }
 
 #define GUI_VOLUMECONTROL_IMPLEMENTATION
 #include "VolumeControl.h"
 
-template<typename T>
-concept calls_with_no_arguments = requires(T a) {
-    { a() };
-};
-
-template<typename TFunction>
-void call_lambda(TFunction func) {
-    func();
-}
-
 int main() {
     raylib::Window window(800, 600, "CS381 - Assignment 0");
     raylib::AudioDevice audio;
@@ -28,29 +21,35 @@ int main() {
 
     raylib::Sound ping("audio/ping.wav");
     raylib::Music music("audio/price-of-freedom.mp3");
+    raylib::Sound dialog("audio/crowd.wav");
     music.Play();
+    dialog.Play();
 
     // play ping sound when button is pressed
     auto lambdaPingButton = [&ping]() {
         ping.Play();
     };
 
-    call_lambda(lambdaPingButton);
+    pingButtonHandler = lambdaPingButton;
 
     InitGuiVolumeControl();
 
     while (!window.ShouldClose()) {
         window.BeginDrawing();
 
+        GuiVolumeControl(&guiState);
+
         window.ClearBackground(raylib::Color::RayWhite());
+
+        ping.SetVolume(guiState.SFXSliderValue / 100.0f);
+
         music.Update();
         music.SetVolume(guiState.MusicSliderValue / 100.0f);
-        GuiVolumeControl(&guiState);
+
+        dialog.SetVolume(guiState.DialogueSliderValue / 100.0f);
 
         window.EndDrawing();
     }
 
-    delete ping;
-
     return 0;
 }